cie

17-31-142

overall uniformity of road surface luminance

Uo

quotient of the minimum luminance at a point and the average road surface luminance over an evaluation area

Note 1 to entry: Where the luminance value refers only to the carriageway part of the road it can be known as "carriageway luminance".

Note 2 to entry: The overall uniformity of road surface luminance has unit one.

Note 3 to entry: This entry was numbered 17-857 in CIE S 017:2011.

Publication date: 2020-12
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